2026-05-06T14:20:20Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/17752024-03-05T12:31:06Zcom_20.500.11984_473col_20.500.11984_478

Numerical Simulation of Surface Modification During Machining of Nickel-based Superalloy ARRAZOLA, PEDRO JOSE Imaz Ciaran, Mikel Rotella, Giovanna Caruso, Serafino Imbrogno, Stano Filice, Luigino Umbrello, Domenico Machining Finite Element Method Surface Integrity The main objective of this study is to implement a reliable FE model of the orthogonal machining of a Nickel based superalloy for the prediction of microstructural changes occurring during the process. A FE numerical model was properly calibrated using an iterative procedure based on the comparison between simulated and experimental results. A user subroutine was implemented in the FE code to simulate the dynamic recrystallization and consequently the grain refinement and hardness variation when orthogonal cutting of Nickel based superalloy is performed. Thus, Zener-Hollomon and Hall-Petch equations were implemented to predict the grain size and micro hardness, respectively. In addition, the depth of the affected layer was predicted using the critical strain equation. The obtained results proved the adequacy of the proposed model showing a good agreement between the simulated and the experimental results. 2020-07-06T10:22:33Z 2020-07-06T10:22:33Z 2015 http://purl.org/coar/resource_type/c_6501 2212-8271 https://hdl.handle.net/20.500.11984/1775 eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Elsevier